\section{Signals}
\subsection{Aliasing Signals}
Instead of dealing with OID numbers or cryptic signal names you can map oid
signals to alias signals and name them yourself. In the visualization, the
view configuration or the record configuration you will only deal with these
alias signals. At $(1)$ is the MIB tree where you can select the whole tree,
multiple branches or multiple nodes. With a right click in this field or the
button at $(2)$ you get the option to transfer the selected nodes. If you do so,
all the endnodes of the selection will be transfered to $(3)$. The default
names of these new alias nodes are the names of the endnodes in the mibtree. At
$(3)$ you can select multiple nodes as well, just press control and select the
desired nodes or press shift and click to select a range of nodes. By right
clicking you get the option to remove the nodes out of the alias list.
At $(4)$ you see detailed informations about the currently selected alias node. 
After you changed a field in $(4)$ don't forget to press the ``Apply Changes''
button at $(5)$.


 \begin{figure}[H]
  \centering
  \includegraphics[scale=0.4,angle=00.0]{./screenshots/signals.png}
  \caption{Alias Signal Configuration}
  \label{scenario}
\end{figure}

\subsection{MIB}
In this section you can manage the MIB tree. At $(1)$ you see the whole tree.
By selecting a node detailed information about that node will be displayed at
$(2)$. Here you can change the name, the oid and the description of the node. 
At $(3)$ you got the option ``port required''. Some signals like ifUp require
that you put a portnumber behind that oid. If you check that option SwitchViz
will always do that for you. The changes will take effect if you press the
``Apply Changes'' button at $(4)$. Right clicking in the area of $(1)$ will
give you the option to add or remove a node. If you add one, a node ``name ::
0'' will appear in the current selection. If you remove one, all subnodes will
be removed as well. At $(5)$ you can test a oid if it's a leave node, a new
window will appear. The button ``SNMP Walk'' at $(6)$ will open the SNMP Walker
described later in this manual initialized with the current selected node in the
MIB tree.

\begin{figure}[H]
  \centering
  \includegraphics[scale=0.4,angle=00.0]{./screenshots/mib.png}
  \caption{MIB Configuration}
  \label{mib}
\end{figure}